| Artem Dergachev | 5579630 | 2018-01-17 22:34:23 +0000 | [diff] [blame^] | 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-config c++-allocator-inlining=true -std=c++11 -verify %s |
| 2 | |
| 3 | void clang_analyzer_eval(bool); |
| 4 | void clang_analyzer_warnOnDeadSymbol(int); |
| 5 | |
| 6 | typedef __typeof__(sizeof(int)) size_t; |
| 7 | |
| 8 | int conjure(); |
| 9 | void exit(int); |
| 10 | |
| 11 | struct S { |
| 12 | S() {} |
| 13 | ~S() {} |
| 14 | |
| 15 | static S buffer[1000]; |
| 16 | |
| 17 | // This operator allocates stuff within the buffer. Additionally, it never |
| 18 | // places anything at the beginning of the buffer. |
| 19 | void *operator new(size_t size) { |
| 20 | int i = conjure(); |
| 21 | if (i == 0) |
| 22 | exit(1); |
| 23 | // Let's see if the symbol dies before new-expression is evaluated. |
| 24 | // It shouldn't. |
| 25 | clang_analyzer_warnOnDeadSymbol(i); |
| 26 | return buffer + i; |
| 27 | } |
| 28 | }; |
| 29 | |
| 30 | void testIndexLiveness() { |
| 31 | S *s = new S(); |
| 32 | clang_analyzer_eval(s == S::buffer); // expected-warning{{FALSE}} |
| 33 | } // expected-warning{{SYMBOL DEAD}} |